1. Polytechnic Medical Students' Research Association, Faculty of Medicine, Palestine Polytechnic University, Hebron, Palestine
2. Medical Research Club, Faculty of Medicine, Al-Quds University, Jerusalem, Palestine
3. Consultant Thoracic Surgeon, Thoracic Surgery Unit, Al-Ahli Hospital, Hebron, Palestine
4. Anesthesiologist, Anesthesia and Critical Care, Al-Ahli Hospital, Hebron, Palestine